Thomas E. Ashbrook is an American journalist and radio broadcaster. He was formerly the host of the nationally syndicated, public radio call-in program On Point, from which he was dismissed after an i
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fdc0a4e7d82235c929d0a1f25485798fb97a03607e9af3690dd245459c7a99. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/370cb70f-a05c-4a68-ad88-0eec77b90762.json and https://artists.proofprofile.net/proofs/artist/370cb70f-a05c-4a68-ad88-0eec77b90762.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba44fc4d84cdc5e56182f6b7ec3894ebad85bd53dab32799295ab22ec5accf50. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6HN2025470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3410749be55d6bf8c619037045cb28d6484744ea6227da3ff722dbb9c6f8e5d0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6HN2090193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b9325a6f0d82a80003ce9bb1cc69bac5da0ff86484e2cafa2801061d875d94. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6HN2025567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc66ea1452ad604a6439437286fee9c2f8f71dd9eda7053dab7592e498a054a7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5752106494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509a497cc5c487a9ede4641e05574be5edfb965ad44deb29165ce4d36314c3fb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2011621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45e5d62241575951e20f878b1507eeb2f7415e6863c34c67e4962387be2d182. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6A92111826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9559291fa57d1879bbbc99cbdf6da39a07a4277afa747515d612dd01ac22d79d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2011622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506132612b73b7fe868e4cc35f07725a2dda88a2dadab5929c9560c35a30038e. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2074875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5079b633039d735e7e884573697f2c16ae8ea6305fcc58c41a190d684e3020e7. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2074876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed0da45d7f05d2e90e1cf5dfca4d817b5e5966d7fcc491bb8030db604c7ac4d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2075204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8447d918498c04eb9b472117c014a680f0cf09961017424244f7fad7ca3187ad. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRIDO2210024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0f9b86e2ae9880e3d1e430862cce323051a0a6e81b248541a6b811556caffe. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRIDO2210025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d01d34347c3747a9f1c9deb6b7077bb4ed399c1fc4fd95782960edb35897e77. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRIDO2210046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8196e50c52b995fbda79e3470b241ba43e4cd64a539532135caf5dc3834ba493. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb863371bed45a1410378b9476e18a27cfd79a2f4724bd7930b8ccccc93b1e06b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2316524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ec3f9f8ed983b3f2ffbdc22bae801d453c18d1f6315e93050139ca5510cff4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2316548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30104c13e094f6a504595d8d9099f0463f4912dc076a8d0677a0adb95930829b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2316539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb5cc85d152bd74a30892bf311388b3b8959fa18f26fdadaceb498571348a97. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2316653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097fb9feff6365c39b7f12b3f5d20cc2077929e4498b559acdd161a9a041ac7a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2313616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee284103bfcec037694ef8fd938efdd7dec5417b3cca66c602624a98c765e3d1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVP22400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25421e8c9b1c0836bf4ca20c5b3b1811ff5f6b9ad9184cf076cd9cd342761919. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPVV2204975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa0ae15770fa3a749f918f4ec36e677745e9a0787ded7e1c7d89e7565519ffe. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762101678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501b31efbe48cc1475a500471dd39aaf8dc2efcb7357a9b5896c88228267f277. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAN112400847.